This dress looks like an Impressionist painting with fields of summery flowers. The fabric is a polyester chiffon. It has an elastic waist with a belt in the same fabric. There is elastic at the bottom of the full sleeves. There is a 22" zipper down the back of the dress. It is a stated size 12 but vintage sizes are quite different from today's. I would say that it is a size 8 or 10 at the most. The flat measurements are as follows: Armpit to armpit 36", Waist 28" (elastic), Hips Up to 40", Sleeve length from shoulder 23", Length from back of neck 45", Across back of shoulders 15.75". The belt measures 2.50" X 83". Very nice condition except for some staining on the upper part of the lining.